Industry Description
Ballast, High Pressure Sodium, Enclosed, Input Voltage: 120/208/240/277 VAC, Input Amps: 2.5/1.5/1.3/1.1 Amp, Minimum Starting Temperature: -40 Degree F, Lamp Wattage: 250
Modified Industry Description
250W S50 HIGH PRESSURE SODIUM BALLAST, 120/208/240/277V
AD Description
Advance 71A8271001D Core/Coil HID Magnetic High Pressure Sodium Ballast Kit, High Pressure Sodium Lamp, 250 W, 120/208/240/277 VAC, Pulse, 1 Ballast Factor
Vendor Description
The basic ballast is the open core and coil which is most often used as a component within a lighting luminaire. The core and coil also forms the nucleus of Philips Advance five other ballast configurations.